I have a form set up for people to enter their CHECK-IN and CHECK-OUT dates. I'm looking for a way to have the dates tallied for all reservations received. So for row 1 - a "1" would enter under 7/21, 7/22, 7/23 and 7/24. And for row 2 - "1" would enter in 7/21, 7/22, 7/23. etc. to 7/26.
Is there a way to do this so I don't have to manually do it. And it updates when I make a change to the check-in or check-out date.